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UNITED STATES PATENT OFFICE HENRY JE'N'KiS, OF lOiTTSVILLll, PENNSYLVANIA. i

uMPRov-EMENTI'N MAcHlNERY'FoR'wEAwNG wins GRATIN-G.

Specifcatien formingpartof *Letters Patent No. 5,005, dated March/6, 1847.

clare that the following is'a full andexact de- Y scription thereof.

Screens for the sifting of coal and other 'heavjg substances which 'are to be used in 'pieces of considerable size Ahave been made in various ways, but to construct theniju a durable man-V ner, and so that the meshes should ret-ain their size, has been attended with much difficulty and considerable expense. It has been :it-

. tempted to make them of woven wire; but in the ordinary manner of'weaving wire -`it has not been found possible to use' that which is of a size suilieiently large, as inthe operation of weaving such wire the Woof'or weft will not yield to the action ofthe warp or cbain,tlie latter taking nearly all the bend or criinple, while the former remains nearly straight, in consequence of' which the meshes thus produced are soon rendered irregular and the screen Worthless,

My improvement in the processor manu, y

' wire, the die A may be made t0 slide ont( and facturing such screens consists in irst crimpling the Wire that is to constitute the Woof o'iilling by means of a machine adapted to that purpose. When this has beendonc-to the .proper extent, the 'Wire that is used forthe Warp will obtain the requisite bend or crimple in the operation of weaving.

` For the purpose of enabling othersto carry my improvement into operation, I have in the accompanying drawings represented a noaehine that l have used for c rinipling the Woof",I

and one also that I have.. used for Weavingthe wire.

In the accompanying drawings, Figure l is a top View of my crimping-machine; Fig. 2, a side elevation thereof; Fig. 3, a front. elevation of it, and Fig'. l one ofthebars or dies by which the crimpling is veiiected. Fig. 5 is a A and B, Fig. 3, are the sides of the crimp ling bars or-dies, one of which, A, rests on the bed of the machine, and the other, 1?,whieh is placed immediately over it, is raised and low?vl ered by means'of .the compound levers shown most distincly inthe side elevation,

nig. 2, a a being nu s @which the bar B is connected ,with the lever.

Fig. 4 is a top View of one of the c'rimplingbars A B, Fig. 3. These may have their sides E E of Wood 'embracing a bar oi' iron, FF,

between them'. Into the sides E E are aixed thrwires or rods b b.b,which are best made of The'corsteel.. These rest upon the bar F F. responding bar ordie is similarly made; but the crossing rods or Wires b b mustbreak joints with 4those in its fellow bar. apart ofthe wires b b must correspondjwith `the sizeof the meshes to be formed. I For'ea'eh sized screen there must, therefore, be a 'pair of such bars provided. -The levers and frame-,work j oi' this machine l make of castdron. Y

The Wire to be crimpled,after beingstraight` cned and'cuttotheproperlength,is tobeplaeed. on the bar. or dierA, and the barB brought4 down upon it'by depressing the leverQ-'by which. means the wires wil'lbe crimpled-,as Y

shown at c c. y ,4

To facilitatethe placing; and removal of the dies A and B, I contemplate making ot' bars l of cast-iron chilled on-their facesinstead of in separate pieces. f

I will now proceed to describe the Weaving ap'paratus'which I have employed, as represented in Figsa 5 and 6. TheWarp-wires jj -are shown as stretched by being hooked onto the headblocks G G, one of which 'may be stationary, and the other'made adjustable by tightening-screws H H. Vhat may bedenominated the harness 1 is contained in a box or'frame(shown at l.) A shaft, dfis made to cross the machine from one of these boxes I' to the other, and to carry at each of its ends a pinion, e, that works intoY the racks f f on .the upper. ends of the vertical rods g. flhese -vertical rods are framed into cross-bars hlh. From these cross-bars descend fingers i i, `that have holes drilled iny them,through'whieh the Warpf wiresv j j pass'.

The distance4 la isa handle attachedio the shaft d for working the harness.

There are, as above indicated, two boxes,` such as is shown at I, which lare attached toy the two sides of a sliding frame, J'J, that is sustained on the string-piece K ef the'loom. i,

The manner of forming andhanging the harnessis distinctly shown in Fig. 7.`

To this sliding frame is a'lso attached the sleigh L, carryingreeds M, which consistY of -str'ong rods of iron.-

the crimpling and the weaving apparatus herein described may be made to assume other forms and yet produce a like effect; and it will be nianifest,a1so, that the merit ofthe invention does not consist in the particular'of constructing these machines, but in the 'process of crinklng the wires preparatory to the forming 'of the meshes for screens therewith.'

I claim as of m'y invention#- rlhe apparatus herein described for weavlng the screens from wire so crinklled, said Weav-` ing apparatus consisting'in 'the combination ofthe stretching frame orv blocks and screws G- and H withthe sliding Aframe J J, the hanness I, und the sleigh L,which are attached to the said frame, the whole of which are made to advance from one end to the other of the 190m by means of thelever O and its appendages'.

H JENKINS.

XVitnesses:

Tiros. P. JONES, EDWIN L. BRUNDAG1-;. 

